DTC Logic

Diagnosis Procedure
1.CHECK USB HARNESS
Visually check USB harness.
U1243 display unit
U1255 satellite radio tunerIllumination control system
System Diagram
System Description
The illumination lamps operation is dependent upon the position of the
lighting switch (combination switch).
When the lighting switch is placed in
the 1ST or 2ND position (or if the auto light system is activated) the BCM
(body control module) receives in ...
U1255 satellite radio tuner
Descriptio
Part name
Description
SATELLITE RADIO TUNER
Inputs the satellite radio signal from satellite radio antenna
and outputs the sound signal to the AV control unit.
It is controlled with the AV control unit and serial
communicatio ...
Wiring diagram
CAN SYSTEM
Wiring Diagram
...